package com.itheima.reggie.config;

import com.itheima.reggie.Interceptor.LoginCheckIntercetor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

    @Autowired
    private LoginCheckIntercetor loginCheckIntercetor ;

    @Override
    protected void addResourceHandlers( ResourceHandlerRegistry registry ){
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
    }

    @Override
    protected void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(loginCheckIntercetor).addPathPatterns("/**")
                .excludePathPatterns("/employee/login",
                        "/backend/**" , "/employee/logout" , "/common/upload" , "/common/download" , "/front/**"
                        , "/user/sendMsg" , "/user/login"
                        );
    }

    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用Jackson将Java对象转为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }

}
